工程机械零部件油缸再制造的研究与应用

发布时间：2018-08-04 11:24

【摘要】：自进入21世纪以来,我国的工业发展高速前进,经济也在快速发展,规模也越来越大,对能源和资源的需求越来越高,而中国人口众多,人均资源与世界平均水平还有很大差距。耕地、水资源、煤炭资源、石油资源等资源已经供不应求,能源危机与资源枯竭现象日益明显,自然资源也显得尤其脆弱,我国平均每年消耗煤炭、钢铁等资源占世界总的1/3以上,未来将严重制约我国经济的发展。每年报废的汽车、工程机械数量也在逐年增加,这些废旧的产品不仅会占用大量的面积,还会造成资源的浪费,长时间的曝露在空气中会污染土壤。为了缓解能源危机和资源短缺,必须对废旧的产品进行再制造技术修复,恢复其使用性能。再制造是在废旧产品的基础上对其进行修复,通过产品正向流程与逆向流程的对比突出其对节能减排的贡献以及在环保方面的作用是非常巨大的,实施再制造是十分必要的也是十分重要的,再制造的使用与推广符合可持续发展的需要,在未来的各行各业都会看到再制造的产品,它会发挥越来越重要的作用。本文对工程机械再制造过程做了详细分析,并对再制造每个过程所运用的再制造方法进行介绍,并对一些常用的再制造加工技术的加工原理进行说明。液压油缸作为工程机械的重要的输出元件,油缸的集中程度高,再制造价值大。报废的油缸进行拆解、清洗和检测,达到再制造标准的缸筒进行珩磨再制造,保证其圆度和粗糙度达到新产品的技术要求,珩磨后的油缸先进行理论校核,然后用ANSYS进行应力应变分析。活塞杆的再制造首先要对其进行校直,用电刷镀技术进行表面修复,通过正交试验得到合理的加工参数。再制造加工后的零部件进行装配,装配好的油缸在油缸试验台上进行各项指标的测试,从而验证再制造液压油缸的可行性。
[Abstract]:Since entering the 21st century, China's industrial development has advanced at a high speed, the economy is also developing rapidly, and the scale is getting larger and larger, and the demand for energy and resources has become higher and higher, while China has a large population. There is still a big gap between per capita resources and the world average. Arable land, water resources, coal resources, oil resources and other resources have outstripped supply. The phenomenon of energy crisis and resource depletion is becoming increasingly obvious, and natural resources are particularly vulnerable. China consumes coal on average every year. Steel and other resources account for more than a third of the world's total, which will seriously restrict the development of our economy in the future. The quantity of construction machinery is increasing year by year, which will not only occupy a large amount of area, but also cause waste of resources, which will pollute the soil in the air for a long time. In order to alleviate the energy crisis and the shortage of resources, it is necessary to repair the waste products and restore their performance. Remanufacturing is based on the repair of waste products, through the product forward process and reverse process contrast to highlight its contribution to energy conservation and emission reduction, as well as the role of environmental protection is very great. It is very necessary and important to implement remanufacturing. The use and promotion of remanufacturing meet the needs of sustainable development. In the future, all kinds of industries will see remanufactured products, which will play a more and more important role. This paper makes a detailed analysis of the remanufacturing process of construction machinery, introduces the remanufacturing methods used in each process of remanufacturing, and explains the processing principles of some commonly used remanufacturing techniques. As an important output component of construction machinery, hydraulic cylinder has high concentration and high value of remanufacture. Scrapped cylinders are disassembled, cleaned and tested, honing cylinders that meet the remanufacturing standards are honed and remanufactured to ensure that their roundness and roughness meet the technical requirements of the new products. The honing cylinders are checked theoretically. Then ANSYS is used to analyze the stress and strain. Firstly, the piston rod must be straightened out and the surface repaired by brush plating. The reasonable processing parameters are obtained by orthogonal test. The remanufactured parts are assembled and the assembled cylinder is tested on the cylinder test bench to verify the feasibility of remanufacturing the hydraulic cylinder.
【学位授予单位】：广西科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU603

【相似文献】